/*
 * Created on Oct 16, 2004
 *
 */
package ModuleBuilder.control;

//SimpleFileFilter.java
//A straightforward extension-based example of a file filter. This should be
//replaced by a "first class" Swing class in a later release of Swing.
//
import javax.swing.filechooser.*;
import java.io.File;

public class SimpleFileFilter extends FileFilter {

String[] extensions;
String description;

public SimpleFileFilter(String ext) {
 this (new String[] {ext}, null);
}

public SimpleFileFilter(String[] exts, String descr) {
 // Clone and lowercase the extensions
 extensions = new String[exts.length];
 for (int i = exts.length - 1; i >= 0; i--) {
   extensions[i] = exts[i].toLowerCase();
 }
 // Make sure we have a valid (if simplistic) description
 description = (descr == null ? exts[0] + " files" : descr);
}

public boolean accept(File f) {
 // We always allow directories, regardless of their extension
 if (f.isDirectory()) { return true; }

 // Ok, it’s a regular file, so check the extension
 String name = f.getName().toLowerCase();
 for (int i = extensions.length - 1; i >= 0; i--) {
   if (name.endsWith(extensions[i])) {
     return true;
   }
 }
 return false;
}

public String getDescription() { return description; }
}
